Thunderstorms with heavy rainfall produced scattered flooding across portions of Allegheny and Westmoreland county.
Every event with a place to put it. Tap one for its entry below.
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS PBZ wrote it up.
Thunderstorms with heavy rainfall produced scattered flooding across portions of Allegheny and Westmoreland county.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Pittsburgh, PA wrote its last area forecast discussion before the first event at Aug 3, 8:50 AM EST, 4 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE PITTSBURGH PA 950 AM EDT SUN AUG 3 2014 .SYNOPSIS... SHOWERS AND THUNDERSTORMS WILL BE POSSIBLE AGAIN TODAY AS AN UPPER DISTURBANCE MOVES THROUGH. TEMPERATURES WILL BE BELOW NORMAL. DRY AND MILD CONDITIONS TO RETURN BY THE BEGINNING OF NEXT WEEK. && .NEAR TERM /UNTIL 6 PM THIS EVENING/... UPDATED POPS FOR CURRENT RADAR TRENDS AND ADDED THUNDER AS APPROPRIATE. UPPER LOW SPINNING ON TOP OF REGION WITH SOME SLOW- MOVING SHRA/TSRA WITH HEAVY RAIN. FOCUS SHOULD SLOWLY SHIFT EASTWARD WITH TIME...AND EXPECT SOME DIURNAL DEVELOPMENT ONCE CLOUDS CAN BREAK A BIT. PREVIOUS DISCUSSION... UPPER LEVEL SYSTEM WILL CLOSE OFF OVER THE REGION THIS MORNING. WITH THE SYSTEM DEEPENING AND PLENTY OF AVAILABLE MOISTURE... SHOWERS AND AFTERNOON STORMS WILL DEVELOP ONCE AGAIN THROUGHOUT THE DAY. DISTURBANCE WILL EJECT NORTHEASTWARD LATE THIS AFTERNOON...ROBBING THE ATMOSPHERE OF LARGE SCALE ASCENT AND EVENTUALLY BRING AN END TO THE ACTIVITY. WITH CLOUDS AND PRECIP...TEMPS WILL AGAIN BE BELOW SEASONABLE AVERAGES. && .SHORT TERM /6 PM THIS EVENING THROUGH TUESDAY/... UPPER LEVEL FLOW WILL BECOME ZONAL TONIGHT AND WEAK HIGH PRESSURE WILL SETTLE IN OVER THE DISTRICT. THIS PATTERN WILL ALLOW FOR A MAINLY DRY FORECAST MONDAY AND MONDAY NIGHT. ENERGY SNEAKING UP THE APPALACHIANS LATE MONDAY...MAY ALLOW FOR THE DEVELOPMENT OF A SHOWER OVER THE SOUTHEASTERN RIDGES. THE NEXT WEAK COLD FRONT WILL MOVE THROUGH TUESDAY AFTERNOON. CURRENT MODEL DATA IS SHOWING A LACK OF MOISTURE AND UPPER LEVEL SUPPORT...SO WILL CONTINUE WITH CHC POPS WITH FROPA. && .LONG TERM /TUESDAY NIGHT THROUGH SATURDAY/... COLD FRONT WILL MAKE IT'S SLOW EXIT FROM THE REGION WEDNESDAY NIGHT...WITH THE HIGH PRESSURE RIDGE BUILDING EASTWARD. SURFACE HIGH LOOKS TO REMAIN IN CONTROL FOR THE REMAINDER OF THE LONG TERM. TEMPERATURES WILL REMAIN RIGHT AROUND SEASONAL AVERAGES THROUGH THE PERIOD. && .AVIATION /14Z SUNDAY THROUGH THURSDAY/... NEARLY STATIONARY UPPER LOW WILL REMAIN OVER THE AREA THROUGH SUNDAY AFTERNOON AND CONTINUE TO RESULT IN SCATTERED SHOWERS WITH A FEW EMBEDDED THUNDERSTORMS. IFR STRATUS AND FOG LIKELY THROUGH LATE MID MORNING UNTIL LOWER LEVELS MIX MORE AND DRIER AIR WORKS IN FROM THE SOUTHWEST. WRAP AROUND MOISTURE WILL PROVIDE ANOTHER CHANCE FOR SHOWERS THIS AFTERNOON...WITH BEST CHANCES ACROSS THE NORTH AND DECREASING TO THE SOUTH. OUTLOOK.../TONIGHT THROUGH THURSDAY/... AFTER DRY CONDITIONS ON MONDAY...A FRONTAL BOUNDARY WILL PASS ACROSS THE REGION AND BRING THE NEXT CHANCE OF RESTRICTIONS. && .PBZ WATCHES/WARNINGS/ADVISORIES... MD...NONE. OH...NONE. PA...NONE. WV...NONE. &&
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE PITTSBURGH PA 424 AM EDT SUN AUG 3 2014 MDZ001-OHZ039>041-048>050-057>059-068-069-PAZ007>009-013>016-020>023- 029-031-073>076-WVZ001>004-012-021>023-041-040830- GARRETT-TUSCARAWAS-CARROLL-COLUMBIANA-COSHOCTON-HARRISON- JEFFERSON OH-MUSKINGUM-GUERNSEY-BELMONT-NOBLE-MONROE-MERCER-VENANGO- FOREST-LAWRENCE-BUTLER-CLARION-JEFFERSON PA-BEAVER-ALLEGHENY- ARMSTRONG-INDIANA-WASHINGTON-GREENE-WESTMORELAND-WESTMORELAND RIDGES- FAYETTE-FAYETTE RIDGES-HANCOCK-BROOKE-OHIO-MARSHALL-WETZEL-MARION- MONONGALIA-PRESTON-TUCKER- 424 AM EDT SUN AUG 3 2014 THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN MARYLAND...EAST CENTRAL OHIO...NORTHWEST PENNSYLVANIA...SOUTHWEST PENNSYLVANIA...WEST CENTRAL PENNSYLVANIA...NORTHERN WEST VIRGINIA AND NORTHERN PANHANDLE OF WEST VIRGINIA. .DAY ONE...TODAY AND TONIGHT. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PITTSBURGH PA
942 AM EDT SUN AUG 03 2014
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0940 AM FLOOD WHITAKER 40.40N 79.89W
08/03/2014 ALLEGHENY PA TRAINED SPOTTER
REPORTED THAT SAWMILL RUN IS AT BANKFULL IN AND AROUND
CASTLE SHANNON.
&&
EVENT NUMBER PBZ1401778The national radar mosaic for the moment the first event began.
5 flood. Local standard time, as filed.
A trained spotter reported Saw Mill Run out of its banks near Route 88 and Route 51.
The 911 Call Center reported Route 51 flooded between Bausman Street and Library Road. One person was rescued from a stranded vehicle.
The 911 Call Center reported the intersection of Rebecca Street and West 5th Avenue flooded.
Emergency management reported the intersection of Jefferson Road and Old William Penn Highway flooded, with one vehicle stranded in water.
The 911 Call Center reported roads closed in and around Greensburg due to flooding.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Pennsylvania in 2014Every state in 2014This day in weather historyWarnings in Pennsylvania, August 2014
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 533724, 533725, 533726, 533727, 533728.